Lever device.



- Patented Dec. IG, I901. A C. SMYTH.

LEVER DEVICE.

(Application filqd Sept. 23, 1901.)

2 Sheets-Sheet I.

(No Model.)

/N VE/V 70/? Jamaal Cfmyifi By W/T/VESSES A TTOH (No Model.)

Patented Dec. l0, I90l. A. C. SMYTH.

LEVER nsvmz.

(Application filed Sept. 23, 1901.)

' 2 Sheets-Sheet 2.

WITNESSES: I IN VL IIVTUH m a? (In/726 0 6157/51/52:

| :Rs cu. PnoYuLrTHQ, WASHINGTON, n. c

. FFICEQ ASAHEL CLARK SMYTH, OF BOLIVAR, NElV YORK.

LEVER DEVICE.

SPECIFICATION forming part of Letters Patent No. 688,708, dated December10, 1901. Application filed September 23,1901. Serial No. 76,225. (Nomodel.)

To an whom it may concern;

Be it known that I, ASAHEL CLARK SM YTH, a citizen of the United States,and a resident ofBolivar, in the county of Allegany and State of NewYork, have invented a new and Improved Lever Device, of which thefollowing is a full, clear, and exact description.

The invention relates to lifting, hauling, and pulling devices; and itsobject is to provide a now and improved lever device which is simple anddurable in construction and applicable for various purposes, but moreespecially designed for use in the oil-fields to enable a singleoperator to draw broken and separated pump-rods together.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a perspective view of the improvement. Fig. 2 is alike viewof the same with parts in a different position. Fig. 3 is a similar Viewof the same with parts in a still different position, and Fig. 4 is aperspective View of the actuating-lever and its link.

'A chain A of suitable length is secured at one end to a fixed support,and its other end passes overa pulley B of a sheave B, attached to thearticle 0 to be pulled in the direction of the length of the chainA-that is, in the direction of the arrow a. The free end of the chain Ais connected with a grapplinghook D, connected by a pivot E with a linkF, fulcrumed on a clip G, adjustably secured near one end of thehand-lever H, adapted to be taken hold of by the operator and having agrappling-hook I similar to the grapplinghook D. The grappling-hook D isformed with an enlarged portion D, through which passes loosely thechain A, and the said grappling-hook has a reduced portion D adapted toengage allink of the chain A, so as to lock the grappling-hook Dtemporarily in position on the chain A. The grappling-hook I also has anenlarged portion 1 for the passage of the chain A and a reduced portionI for engageuient with a link of the chain A, so as to form a fulcrumfor the lever H when swinging the same in the direction of the arrow 1)from the position shown in Fig. 1 to the position shownin Fig. 2.

When the several parts are in position, as illustrated in Fig. 1, thegrappling-hook D is locked to the chain A, and when it is desired todraw the sheave B and the article 0 forward in the direction of thearrow at the operator pushes the lever H upward, so as to move the chainAout of the enlarged portion 1 to engage the reduced portion 1* with oneof the links of the chain. The operator now swings the lever H, with theengaged link in the reduced portion 1 as a fulcrum, in the direction ofthe arrow 1), so as to exert a pull on the link F to move the reducedportion D? of the grappling-hook D out of engagement with the link onthe chain A and to engage the enlarged portion D with the said chain. Onthe further movement of the lever H in the direction of the arrow b theenlarged portion D of the grappling-hook D passes along the chain A inthe direction of the arrow a, thus drawing on the free end of the chainand pulling the sheave B and article 0 along in the direction of thearrow d. hen the lever H has reached the end of its stroke, as indicatedin Fig. 2, the operator-moves the lever I-I downward to disengage thereduced portion 1 from the corresponding link in the chain A and toallow the free end of the chain to pull the grappling-hook D back intoits former position-that is, to engage the reduced portion D with a linkin the chain A,

so as to lock the end of the chain by the grappling-hook to the mainportion of the chain. The operator can now swing the lever H back in theinverse direction of the arrow 2) to the position shown in Fig. 1, andthen the abovedescribed operation is repeated. From the foregoing it isevident that the free end of the chain is gradually moved along with thechain passing around the pulley B, thus drawing the sheave B and article0 along half the distance the free end of the chain has been moved.

When the device reaches the fastened end of the chain and the two partsto be drawn together are still a distance apart and it is desired todraw the article 0 still farther along, the following auxiliary devicesare brought into use, special reference being had to Fig. 3: Two hooks LL, connected with each other by a few links L are hooked onto the tworuns of the chain A in front of the pulley B to hold the article 0temporarily in place, and then the operator disconnects thegrappling-hook D from the pivot E and connects the free end of a shortbranch chain J with the said pivot, as indicated in Fig. 3. The portionof the chain A between the hook L and the short chain J has its endshooked together by an S-hook N to take up the slack contained in thesaid portion. The connected hooks L L are used only temporarily to holdthe load and to enable the operator to loosen the grappling-hook D fromthe chain by first removing the pivot E from the hook D and thenattaching the chain J to the restored pivot and pulling on the lever Hto slacken the chain and disengage the grappling-hook from the chain.The above-described operation is then repeated-that is, the lever H ismanipulated, as described, to draw the end of the chain having thetied-upslacken ed portion along on the main portion of the chain.

This device .is especially serviceable in oilfields in which a centralpower is connected by pump-rods with the several pumps located adistance from the central power. It frequently happens that one of thesepump-rods breaks and the broken ends move distances apart, especially assuch pump-rods are usually a distance above the ground, and I find thatmy device is extremely useful to enable a single operator to draw suchparted ends together.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A lever device, comprising a'haulingchain securedat one end, a sheave connected with the article to be moved and aroundwhich passes the other end of the chain, a lever removably connectedwith the chain to form fulcrums thereon at different points of itslength, and a link pivotally connected with the lever and connected withthe free end of the chain, the link having means for attachment to thechain at different points of its length and alternately with the saidlever, as set forth.

2. A lever device, comprising a haulingchain, a sheave for connectionwith the article to be moved and over which passes the chain, a leverhaving a grappling-hook for the passage of the hauling-chain and forengaging a link thereof to form a fulcrum for the lever on the chain, alink pivoted at one end to the said lever, and a grappling-hook at theother end of said link and connected with the end of the chain, andadapted to engage a link on the chain to lock the free end of the chainto the main run for moving the lever along the chain to obtain anotherfulcrum, as set forth.

3. A lever device, comprising a haulingchain, a sheave for connectionwith the article to be moved and over which passes the chain, a leverhaving a grappling-hook for the passage of the hauling-chain and forengaging a link thereof to form a fulcrum for the lever on the chain, alink pivoted at one end to the said lever, agrappling-hook at the otherend of said link and connected with the end of the chain, and adapted toengage a link on the chain to lock the free end of the chain to the mainrun for moving the lever along the chain to obtain another fulcrum, ashort branch chain for engagement with the link, and a pair of connectedhooks for securing the runs of the chain in front of the said sheave, asset forth.

4. A lever device, comprising a haulingchain, a sheave for connectionwith the article to be moved and over which passes the chain, a leverhaving a grappling-hook for the passage of the hauling-chain and forengaging a link thereof to form a fulcrum for the lever on the chain, alink pivoted at one end to the said lever, a grappling-hook at the otherend of said link and connected with the end of the chain, and adapted toengage a link on the chain to lock the free end of the chain to the mainrun for moving the lever along the chain to obtain another fulcrum, ashort branch chain for engagement with the link, a pair of connectedhooks for securing the runs of the chain in front of the saidsheave,.and an S-hook for taking up the slack in the chain, as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two witnesses.

ASAHEL CLARK SMYTH.

Witnesses:

W. A. HARDISON, B. O. NEWTON.

